Fix and improve tail call. Fix flagsFor: Allow more than one input. Inputs and temporaries may only be registers. Remove redundant moves from emitCode, these are emitted by visitInvokeArguments in TailcallNode. Skip over empty slot for two-slot values in frame state.

set HotSpotMksHome=C:\cygwin\bin& set JAVA_HOME=%cd%\jdk1.7.0& set path=%JAVA_HOME%\bin;%path%;%HotSpotMksHome%& cd make\windows& call create.bat %cd%