GR-26584: fix importlib metadata api - re-enable unittests

- style fixes

Author: cosminbasca

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ImpModuleBuiltins.java

@@ -187,21 +187,21 @@ public static final Assumption singleContextAssumption() {
 
         @Specialization(assumptions = "singleContextAssumption()")
         public PBytes runCachedSingleContext(@SuppressWarnings("unused") VirtualFrame frame,
-                        @Cached(value = "getMagicNumberPBytes(frame, toBytesNode, pol)", weak = true) PBytes magicBytes) {
+                        @Cached(value = "getMagicNumberPBytes(frame)", weak = true) PBytes magicBytes) {
             return magicBytes;
         }
 
         @Specialization(replaces = "runCachedSingleContext")
         public PBytes run(@SuppressWarnings("unused") VirtualFrame frame,
-                        @Cached(value = "getMagicNumberBytes(frame, toBytesNode, pol)", dimensions = 1) byte[] magicBytes) {
+                        @Cached(value = "getMagicNumberBytes(frame)", dimensions = 1) byte[] magicBytes) {
             return factory().createBytes(magicBytes);
         }
 
-        protected PBytes getMagicNumberPBytes(VirtualFrame frame, IntBuiltins.ToBytesNode toBytesNode, PythonObjectLibrary pol) {
-            return factory().createBytes(getMagicNumberBytes(frame, toBytesNode, pol));
+        protected PBytes getMagicNumberPBytes(VirtualFrame frame) {
+            return factory().createBytes(getMagicNumberBytes(frame));
         }
 
-        protected byte[] getMagicNumberBytes(VirtualFrame frame, IntBuiltins.ToBytesNode toBytesNode, PythonObjectLibrary pol) {
+        protected byte[] getMagicNumberBytes(VirtualFrame frame) {
             try {
                 PBytes magic = toBytesNode.execute(frame, MAGIC_NUMBER, 2, "little", false);
                 byte[] magicBytes = pol.getBufferBytes(magic);

graalpython/lib-python/3/test/test_importlib/test_metadata_api.py

@@ -9,7 +9,6 @@
     Distribution, PackageNotFoundError, distribution,
     entry_points, files, metadata, requires, version,
     )
-from test.support import impl_detail
 
 
 class APITests(
@@ -97,7 +96,6 @@ def test_requires_egg_info_file(self):
         requirements = requires('egginfo-file')
         self.assertIsNone(requirements)
 
-    @impl_detail("GR-26584: fix metadata api", graalvm=False)
     def test_requires_egg_info(self):
         deps = requires('egginfo-pkg')
         assert len(deps) == 2
@@ -113,7 +111,6 @@ def test_requires_dist_info(self):
         assert 'wheel >= 1.0' in deps
         assert "pytest; extra == 'test'" in deps
 
-    @impl_detail("GR-26584: fix metadata api", graalvm=False)
     def test_more_complex_deps_requires_text(self):
         requires = textwrap.dedent("""
             dep1