Bug ID: JDK-8072008 Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls

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JDK 9
9 b97Fixed

Reported by Remi: http://mail.openjdk.java.net/pipermail/mlvm-dev/2014-December/006192.html

If a MemberName is constant, direct call is faster than linkTo* call. 

Consider simple recursive call:
    static void rec(int depth) throws Throwable {
        if (depth > 0) {
            recMH.invokeExact(depth-1);
        } else {
            return;
        }
    }

C2 -XX:+PrintCompilation:
jsr292.RecursiveCall::rec (18 bytes)
@ 10   java.lang.invoke.LambdaForm$MH/537548559::invokeExact_MT (16 bytes)   force inline by annotation
  @ 2   java.lang.invoke.Invokers::checkExactType (30 bytes)   force inline by annotation
    @ 11   java.lang.invoke.MethodHandle::type (5 bytes)   accessor
  @ 12   java.lang.invoke.LambdaForm$DMH/1617791695::invokeStatic_I_V (14 bytes)   force inline by annotation
    @ 1   java.lang.invoke.DirectMethodHandle::internalMemberName (8 bytes)   force inline by annotation
    @ 10   jsr292.RecursiveCall::rec (18 bytes)   inline (hot)
      @ 10   java.lang.invoke.LambdaForm$MH/537548559::invokeExact_MT (16 bytes)   force inline by annotation
        @ 2   java.lang.invoke.Invokers::checkExactType (30 bytes)   force inline by annotation
          @ 11   java.lang.invoke.MethodHandle::type (5 bytes)   accessor
        @ 12   java.lang.invoke.LambdaForm$DMH/1617791695::invokeStatic_I_V (14 bytes)   force inline by annotation
          @ 1   java.lang.invoke.DirectMethodHandle::internalMemberName (8 bytes)   force inline by annotation
          @ 10   jsr292.RecursiveCall::rec (18 bytes)   recursive inlining is too deep

Non-inlined recursive call can be a direct call, but it is a ::linkToStatic call:
[...]
  0x000000010feeabfe: movabs $0x79561d2a0,%rdx  ;   {oop(a 'java/lang/invoke/MemberName' = {method} {0x00000001180a3528} 'rec' '(I)V' in 'jsr292/RecursiveCall')}
  0x000000010feeac08: nop
  0x000000010feeac09: nop
  0x000000010feeac0a: nop
  0x000000010feeac0b: callq  0x000000010fe49900  ; OopMap{off=48}
                                                ;*invokestatic linkToStatic
                                                ; - java.lang.invoke.LambdaForm$DMH/1617791695::invokeStatic_I_V@10
                                                ; - java.lang.invoke.LambdaForm$MH/537548559::invokeExact_MT@12
                                                ; - jsr292.RecursiveCall::rec@10 (line 28)
                                                ; - java.lang.invoke.LambdaForm$DMH/1617791695::invokeStatic_I_V@10
                                                ; - java.lang.invoke.LambdaForm$MH/537548559::invokeExact_MT@12
                                                ; - jsr292.RecursiveCall::rec@10 (line 28)
                                                ;   {static_call}
 [...]

Relates :	JDK-8148994 - Replacing MH::invokeBasic with a direct call breaks LF customization
Relates :	JDK-8150436 - Incorrect invocation mode when linkToInteface linker is eliminated
Relates :	JDK-8217760 - C2: Missing symbolic info on a call from intrinsics when invoked through MethodHandle
Relates :	JDK-8158639 - C2 compilation fails with SIGSEGV
Relates :	JDK-8203480 - IncompatibleClassChangeError thrown at sites linked to default interface methods
Relates :	JDK-8145137 - Incorrect call signature can be used in nmethod::preserve_callee_argument_oops