Allow fundamental type with suffix in expression

A test in druntime uses `int*[0].init`: https://github.com/dlang/dmd/blob/fb07d990466f185c2adb19d320627c2723d3978a/druntime/src/core/internal/traits.d#L625
This was previously not allowed in the grammar.
DMD probably accepts it since this PR: dlang/dmd#14672

The generated parser is now also tested with DMD and druntime sources.

Author: tim-dlang

examples/d/grammard.ebnf

@@ -294,7 +294,7 @@ PrimaryExpression @directUnwrap
     | <MixinExpression
     | <ImportExpression
     | <NewExpression
-    | FundamentalType "." Identifier
+    | FundamentalType TypeSuffixes? "." Identifier
     // | TypeCtor? "(" Type ")" "." Identifier
     // | "(" Type ")" "." TemplateInstance
     // | FundamentalType "(" NamedArgumentList? ")"
@@ -1962,16 +1962,19 @@ FundamentalType
     | "creal"
     | "void"
     ;
+TypeSuffixes
+    = TypeSuffix TypeSuffixes?
+    ;
 PostfixType @directUnwrap
     = <BasicType
-    | PostfixType "*"
-    | PostfixType ArrayTypeSuffix
-    | PostfixType "delegate" Parameters MemberFunctionAttributes?
-    | PostfixType "function" Parameters FunctionAttributes?
+    | PostfixType TypeSuffix
     ;
-ArrayTypeSuffix
-    = "[" "]"
+TypeSuffix
+    = "*"
+    | "[" "]"
     | "[" ArrayTypeSuffixContent "]"
+    | "delegate" Parameters MemberFunctionAttributes?
+    | "function" Parameters FunctionAttributes?
     ;
 ArrayTypeSuffixContent @backtrack
     = <Type

examples/d/testgrammard-extra/test16.d

@@ -0,0 +1,3 @@
+const e1 = int*.init;
+const e2 = int[1].init;
+const e3 = int*[0].init;

runtests.d

@@ -616,6 +616,8 @@ int main(string[] args)
                     "--test-dir", buildPath(dmdDir, "compiler/test/runnable_cxx"),
                     "--test-dir-fail-dmd",
                     buildPath(dmdDir, "compiler/test/fail_compilation"),
+                    "--test-dir", buildPath(dmdDir, "druntime/src"),
+                    "--test-dir", buildPath(dmdDir, "compiler/src"),
                 ]);
         version (Windows)
         {