Update tests to exercise the terse function syntax more

Author: hsutter

regression-tests/mixed-captures-in-expressions-and-postconditions.cpp2

@@ -7,7 +7,7 @@ main: () -> int = {
             = ("hello", "2022");
 
     y: std::string = "\n";
-    callback := :(x:_) = { std::cout << x << y&$*; };
+    callback := :(x) = std::cout << x << y&$*;
 
     std::ranges::for_each( vec, callback );
     y = "-ish\n";

regression-tests/mixed-function-expression-and-std-for-each.cpp2

@@ -13,11 +13,11 @@ main: () -> int = {
     std::for_each(
         view.begin(),
         view.end(),
-        :(inout x:_) = x += "-ish";
+        :(inout x) = x += "-ish";
     );
 
     //  Initializing from a function expression
-    callback := :(inout x:_) = x += " maybe";
+    callback := :(inout x) = x += " maybe";
     std::for_each(
         view.begin(),
         view.end(),

regression-tests/mixed-function-expression-and-std-ranges-for-each-with-capture.cpp2

@@ -12,9 +12,9 @@ main: () -> int = {
 
     y := "\n";
     std::ranges::for_each
-        ( view, :(x:_) = { std::cout << x << y$; } );
+        ( view, :(x) = std::cout << x << y$ );
 
-    callback := :(inout x:_) = x += "-ish";
+    callback := :(inout x) = x += "-ish";
     std::ranges::for_each( view, callback );
 
     for view do (str)

regression-tests/mixed-function-expression-and-std-ranges-for-each.cpp2

@@ -11,9 +11,9 @@ main: () -> int = {
     view: std::span = vec;
 
     std::ranges::for_each
-        ( view, :(x:_) = { std::cout << x << "\n"; } );
+        ( view, :(x) = std::cout << x << "\n" );
 
-    callback := :(inout x:_) = x += "-ish";
+    callback := :(inout x) = x += "-ish";
     std::ranges::for_each( view, callback );
 
     for view do (str)

regression-tests/mixed-function-expression-with-pointer-capture.cpp2

@@ -11,11 +11,11 @@ main: () -> int = {
     view: std::span = vec;
 
     y: std::string = "\n";
-    std::ranges::for_each( view, :(x:_) = {
-        std::cout << (y&$)*.c_str() << x << y&$*;
-    } );
+    std::ranges::for_each( view, :(x) =
+        std::cout << y&$*.c_str() << x << y&$*;
+    );
 
-    callback := :(inout x:_) = x += "-ish";
+    callback := :(inout x) = x += "-ish";
     std::ranges::for_each( view, callback );
 
     for view do (str)

regression-tests/mixed-function-expression-with-repeated-capture.cpp2

@@ -12,9 +12,9 @@ main: () -> int = {
 
     y := "\n";
     std::ranges::for_each
-        ( view, :(x:_) = { std::cout << y$ << x << y$; } );
+        ( view, :(x) = std::cout << y$ << x << y$ );
 
-    callback := :(inout x:_) = x += "-ish";
+    callback := :(inout x) = x += "-ish";
     std::ranges::for_each( view, callback );
 
     for view do (str)

regression-tests/pure2-look-up-parameter-across-unnamed-function.cpp2

@@ -1,13 +1,13 @@
 
 f: () -> (ri : int = 0) = {
-    pred := :(e:_) -> bool = { return e == 1; };
+    pred := :(e) e == 1;
     ri = 42;
     // "return;" is implicit"
 }
 
 g: () -> (ri : int) = {
     ri = 0;
-    pred := :(e:_) -> bool = { return e == 1; };
+    pred := :(e) e == 1;
     ri = 42;
     return;
 }

regression-tests/test-results/mixed-captures-in-expressions-and-postconditions.cpp

@@ -32,7 +32,7 @@ auto insert_at(cpp2::in<int> where, cpp2::in<int> val) -> void;
             "hello", "2022"}; 
 
     std::string y {"\n"}; 
-    auto callback {[_0 = (&y)](auto const& x) -> void{std::cout << x << *cpp2::assert_not_null(_0); }}; 
+    auto callback {[_0 = (&y)](auto const& x) -> void { std::cout << x << *cpp2::assert_not_null(_0);  }}; 
 
     std::ranges::for_each(vec, callback);
     y = "-ish\n";

regression-tests/test-results/mixed-function-expression-and-std-ranges-for-each-with-capture.cpp

@@ -31,7 +31,7 @@
 
     auto y {"\n"}; 
     std::ranges::for_each
-        (view, [_0 = std::move(y)](auto const& x) -> void{std::cout << x << _0; });
+        (view, [_0 = std::move(y)](auto const& x) -> void { std::cout << x << _0;  });
 
     auto callback {[](auto& x) -> void { x += "-ish";  }}; 
     std::ranges::for_each(view, std::move(callback));

regression-tests/test-results/mixed-function-expression-and-std-ranges-for-each.cpp

@@ -30,7 +30,7 @@
     std::span view {vec}; 
 
     std::ranges::for_each
-        (view, [](auto const& x) -> void{std::cout << x << "\n"; });
+        (view, [](auto const& x) -> void { std::cout << x << "\n";  });
 
     auto callback {[](auto& x) -> void { x += "-ish";  }}; 
     std::ranges::for_each(view, std::move(callback));