commit 06bfe18dd51ecac0078201537ee373318553285b
author Elliott Hughes <enh@google.com> Tue Mar 29 14:06:24 2011 -0700
committer Elliott Hughes <enh@google.com> Tue Mar 29 14:45:08 2011 -0700
tree 1f7cdd787e50035ce19a2ea1205612dbabd40f10
parent edb595d5ee6d5b2eddf9b897efc4ccbf56ee6c12

Improve diagnostics when RegisterNatives fails.

This assumes that people spell the method name correctly, but make mistakes
in the signature (which seems to be true in practice).

Before:
    W( 7757) ERROR: Unable to find decl for native Llibcore/io/Posix;.sendfile:(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Llibcore/util/MutableInt;J)J  (dalvikvm)
    E( 7757) RegisterNatives failed for 'libcore/io/Posix', aborting  (JNIHelp)

After:
    E(23966) ERROR: couldn't find native method  (dalvikvm)
    E(23966) Requested: Llibcore/io/Posix;.sendfile:(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Llibcore/util/MutableLong;J)Z  (dalvikvm)
    E(23966) Candidate: Llibcore/io/Posix;.sendfile:(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Llibcore/util/MutableLong;J)J  (dalvikvm)
    E(23966) RegisterNatives failed for 'libcore/io/Posix', aborting  (JNIHelp)

Change-Id: I434aee679bd7c2760404b7790b996f7f86ed9b44