Makefile add -DRECORD_REPLAY flag. because LibVEX doesn't define this macro.
[m_recordreplay]instrument.c: comment out the assertion in incomplete part.

comment out the assertion in incomplete instruction recording.
x86 non-deterministic instruction recording in coregrind/m_recordreplay/instrument.c
[m_recordreplay]instrument.c: processing new IRStmt type in valgrind 3.9

From valgrind 3.3 to valgrind 3.9, valgrind add 4 IRStmt type.
So at instrumentation code, We add new case for processing these 4 IRStmt types:
Doing nothing, just pass through original instruction to instrumented code.