Add descriptor validation to ClassLinker::FindClass().
And add tests for odd signatures passed to JNI GetFieldID().
Previously, passing the signature "java/lang/String" instead
of "Ljava/lang/String;" would call the class loader with the
dot name java.lang.String and the class loader would find
that class only to fail the DescriptorEquals() check back
in ClassLinker::FindClass().
Test: 647-jni-get-field-id
Bug: 33577836
Bug: 37156832
Change-Id: I6612a272ec24b0d54b728fd35003e9c24a7e2e95
diff --git a/test/647-jni-get-field-id/info.txt b/test/647-jni-get-field-id/info.txt
new file mode 100644
index 0000000..00a2b20
--- /dev/null
+++ b/test/647-jni-get-field-id/info.txt
@@ -0,0 +1 @@
+Test for native calls to JNI GetFieldID() with odd signatures.