Lang - rename use_random_stream to use_random_source

I'd like to keep use_random_stream for the future usecase of switching streams based on names.

Author: samaaron

CHANGELOG.md

@@ -32,7 +32,7 @@
 
 ### New 
 * Completely new MIDI subsystem.
-* `use/with_random_stream` - change the current random stream used when selecting random values. We now have `:white`, `:light_pink`, `:pink`, `:dark_pink` and `:perlin`.  Default is `:white` which is the same stream as previous releases to preserve compatibility.
+* `use/with_random_source` - change the current random stream used when selecting random values. We now have `:white`, `:light_pink`, `:pink`, `:dark_pink` and `:perlin`.  Default is `:white` which is the same stream as previous releases to preserve compatibility.
 * Many Turkish scales (makams) have been added.
 * New user config directory for fine tuning aspects of the app such as advanced audio settings. See `~/.sonic-pi/config/README.md` for more information.
 

app/server/ruby/lib/sonicpi/lang/core.rb

@@ -3420,13 +3420,13 @@ def with_random_seed(seed, &block)
 
 
 
-      def use_random_stream(noise_type, &block)
-        raise ArgumentError, "use_random_stream does not work with a block. Perhaps you meant with_random_stream" if block
+      def use_random_source(noise_type, &block)
+        raise ArgumentError, "use_random_source does not work with a block. Perhaps you meant with_random_stream" if block
         raise ArgumentError, "invalid noise type '#{noise_type}' - please use one of :white, :pink, :light_pink, :dark_pink or :perlin instead" unless %w(white pink light_pink dark_pink perlin).include?(noise_type.to_s)
 
         SonicPi::Core::SPRand.set_random_number_distribution!(noise_type)
       end
-      doc name:           :use_random_stream,
+      doc name:           :use_random_source,
           introduced:     Version.new(3,3,0),
           summary:        "Change how random numbers are chosen",
           args:           [[:noise_type, :symbol]],
@@ -3455,17 +3455,17 @@ def use_random_stream(noise_type, &block)
 
       ",
           examples:       ["
-  use_random_stream :white # use white noise as the distribution (default)
+  use_random_source :white # use white noise as the distribution (default)
   rand_reset # reset random seed
   puts rand # => 0.75006103515625
   puts rand # => 0.733917236328125
   puts rand # => 0.464202880859375
   rand_reset # reset it again
-  use_random_stream :pink # use pink noise as the distribution
+  use_random_source :pink # use pink noise as the distribution
   puts rand # => 0.47808837890625
   puts rand # => 0.56011962890625
   rand_reset # reset it
-  use_random_stream :perlin # use perlin noise as the distribution
+  use_random_source :perlin # use perlin noise as the distribution
   puts rand # => 0.546478271484375
   puts rand # => 0.573150634765625
 
@@ -3482,7 +3482,7 @@ def use_random_stream(noise_type, &block)
 
 
       def with_random_stream(noise_type, &block)
-        raise ArgumentError, "with_random_stream requires a block. Perhaps you meant use_random_stream" unless block
+        raise ArgumentError, "with_random_stream requires a block. Perhaps you meant use_random_source" unless block
         raise ArgumentError, "invalid noise type '#{noise_type}' - please use one of :white, :pink, :light_pink, :dark_pink or :perlin instead" unless %w(white pink light_pink dark_pink perlin).include?(noise_type.to_s)
         new_thread_gen_type = SonicPi::Core::SPRand.get_random_number_distribution
 
@@ -3500,17 +3500,17 @@ def with_random_stream(noise_type, &block)
           accepts_block:  true,
           requires_block: true,
           examples:      ["
-  use_random_stream :white # use white noise as the distribution (default)
+  use_random_source :white # use white noise as the distribution (default)
   rand_reset # reset random seed
   puts rand # => 0.75006103515625
   puts rand # => 0.733917236328125
   puts rand # => 0.464202880859375
   rand_reset # reset it again
-  use_random_stream :pink # use pink noise as the distribution
+  use_random_source :pink # use pink noise as the distribution
   puts rand # => 0.47808837890625
   puts rand # => 0.56011962890625
   rand_reset # reset it
-  use_random_stream :perlin # use perlin noise as the distribution
+  use_random_source :perlin # use perlin noise as the distribution
   puts rand # => 0.546478271484375
   puts rand # => 0.573150634765625
 

app/server/ruby/test/lang/core/test_random.rb

@@ -6,7 +6,7 @@ class RandomTester < Minitest::Test
     include SonicPi::Lang::Core
 
     def test_rand
-      use_random_stream :white
+      use_random_source :white
       rand_reset
       assert_equal(rand, 0.75006103515625)
       assert_equal(rand, 0.733917236328125)
@@ -15,27 +15,27 @@ def test_rand
     end
 
     def test_rand_type
-      use_random_stream :white
+      use_random_source :white
       rand_reset
       assert_equal(rand, 0.75006103515625)
       assert_equal(rand, 0.733917236328125)
-      use_random_stream :white
+      use_random_source :white
       rand_reset
       assert_equal(rand, 0.75006103515625)
       assert_equal(rand, 0.733917236328125)
-      use_random_stream :pink
+      use_random_source :pink
       rand_reset
       assert_equal(rand, 0.47808837890625)
       assert_equal(rand, 0.56011962890625)
-      use_random_stream :light_pink
+      use_random_source :light_pink
       rand_reset
       assert_equal(rand, 0.53851318359375)
       assert_equal(rand, 0.54705810546875)
-      use_random_stream :dark_pink
+      use_random_source :dark_pink
       rand_reset
       assert_equal(rand, 0.442596435546875)
       assert_equal(rand, 0.443756103515625)
-      use_random_stream :perlin
+      use_random_source :perlin
       rand_reset
       assert_equal(rand, 0.546478271484375)
       assert_equal(rand, 0.573150634765625)
@@ -49,7 +49,7 @@ def test_rand_type
       assert_equal(rand, 0.597015380859375)
 
       # return to default
-      use_random_stream :white
+      use_random_source :white
     end
 
     def test_rand_reset