Intercept JNI invocation of String.<init> methods.
libmono uses JNI AllocObject and CallNonvirtualVoidMethod to create and
initialize a string instead of using the recommended NewObject. This
change adds an intercept to change the String.<init> call to a
StringFactory call instead. Then, it uses the object id of the original
string object referrer and maps it to the result of the StringFactory.
Bug:
21288130
(cherry picked from commit
15e9ad1d028d7f12cb598b075453173532a00d91)
Change-Id: I3421c43722c07397da4a398c2ca9110e1d40bcfa