Add file suffix; use quote includes for consistency

Author: p-sawicki

mypyc/codegen/emitmodule.py

@@ -588,7 +588,7 @@ def generate_c_for_modules(self) -> list[tuple[str, str]]:
             for source_dep in sorted(source_deps, key=lambda d: d.path):
                 base_emitter.emit_line(f'#include "{source_dep.path}"')
             if self.compiler_options.depends_on_librt_internal:
-                base_emitter.emit_line("#include <internal/librt_internal_api.c>")
+                base_emitter.emit_line('#include "internal/librt_internal_api.c"')
         base_emitter.emit_line(f'#include "__native{self.short_group_suffix}.h"')
         base_emitter.emit_line(f'#include "__native_internal{self.short_group_suffix}.h"')
         emitter = base_emitter
@@ -646,7 +646,7 @@ def generate_c_for_modules(self) -> list[tuple[str, str]]:
         declarations.emit_line("#include <CPy.h>")
 
         if self.compiler_options.depends_on_librt_internal:
-            declarations.emit_line("#include <internal/librt_internal.h>")
+            declarations.emit_line('#include "internal/librt_internal_api.h"')
         # Include headers for conditional source files
         source_deps = collect_source_dependencies(self.modules)
         for source_dep in sorted(source_deps, key=lambda d: d.path):