Revert "Disable tests after latest nativeloader changes."

This reverts commit 7032e780836a464faf5901d9d8d7fedb97f3a739.

Bug: http://b/28449304
diff --git a/compiler/jni/jni_compiler_test.cc b/compiler/jni/jni_compiler_test.cc
index 5b7574a..cf836a9 100644
--- a/compiler/jni/jni_compiler_test.cc
+++ b/compiler/jni/jni_compiler_test.cc
@@ -227,8 +227,7 @@
   EXPECT_EQ(25, result);
 }
 
-// Disabled due to NativeLoader b/28449304.
-// JNI_TEST(CompileAndRunIntMethodThroughStub)
+JNI_TEST(CompileAndRunIntMethodThroughStub)
 
 void JniCompilerTest::CompileAndRunStaticIntMethodThroughStubImpl() {
   SetUpForTest(true, "sbar", "(I)I", nullptr);
@@ -243,8 +242,7 @@
   EXPECT_EQ(43, result);
 }
 
-// Disabled due to NativeLoader b/28449304.
-// JNI_TEST(CompileAndRunStaticIntMethodThroughStub)
+JNI_TEST(CompileAndRunStaticIntMethodThroughStub)
 
 int gJava_MyClassNatives_fooI_calls = 0;
 jint Java_MyClassNatives_fooI(JNIEnv* env, jobject thisObj, jint x) {