Make global_asm!() work

Because apparently, we were not accepting inline asm in item position, completely breaking it.

crates/parser/test_data/generated/runner.rs

@@ -300,6 +300,8 @@ mod ok {
         run_and_expect_no_errors("test_data/parser/inline/ok/generic_param_list.rs");
     }
     #[test]
+    fn global_asm() { run_and_expect_no_errors("test_data/parser/inline/ok/global_asm.rs"); }
+    #[test]
     fn half_open_range_pat() {
         run_and_expect_no_errors("test_data/parser/inline/ok/half_open_range_pat.rs");
     }

crates/parser/test_data/parser/inline/ok/asm_kinds.rast

@@ -23,16 +23,15 @@ SOURCE_FILE
             R_PAREN ")"
           SEMICOLON ";"
         WHITESPACE "\n    "
-        EXPR_STMT
-          ASM_EXPR
-            BUILTIN_KW "builtin"
-            POUND "#"
-            GLOBAL_ASM_KW "global_asm"
-            L_PAREN "("
-            LITERAL
-              STRING "\"\""
-            R_PAREN ")"
-          SEMICOLON ";"
+        ASM_EXPR
+          BUILTIN_KW "builtin"
+          POUND "#"
+          GLOBAL_ASM_KW "global_asm"
+          L_PAREN "("
+          LITERAL
+            STRING "\"\""
+          R_PAREN ")"
+        SEMICOLON ";"
         WHITESPACE "\n    "
         EXPR_STMT
           ASM_EXPR

crates/parser/test_data/parser/inline/ok/global_asm.rast

@@ -0,0 +1,10 @@
+SOURCE_FILE
+  ASM_EXPR
+    BUILTIN_KW "builtin"
+    POUND "#"
+    GLOBAL_ASM_KW "global_asm"
+    L_PAREN "("
+    LITERAL
+      STRING "\"\""
+    R_PAREN ")"
+  WHITESPACE "\n"

crates/parser/test_data/parser/inline/ok/global_asm.rs

@@ -0,0 +1 @@
+builtin#global_asm("")