[MoarVM Bump] Brings 23 commits

MoarVM bump brought: MoarVM/MoarVM@2018.05-34-gdb50291...2018.05-57-g89dee3be3
89dee3be3 Fix encoderep/encoderepconf returning value into wrong register
f0a837c41 Make MVM_string_utf8_decode 8% faster with vectorized 8bit check
a8507b8f0 Separate out code into MVM_string_buf32_can_fit_into_8bit
fa13c6d01 Optimize sp_jit_enter in interp.c a very small amount
7ea1b5c30 Only use the 64 bit memory access code in memmem32 for supported cpus
fdaf8e0e7 Optimize MVM_serialization_read_int so as not to need memcpy calls
b74c0cbb0 JIT compile encoderepconf
c3f1066de Expr JIT template for decont_s
4c50cf24e Expr JIT template for assertparamcheck
1deb809da Expr JIT templates for param_rp_s, param_rp_o and param_sn
f217842ef Expr JIT template for checkarity
ff312c4cf [JIT] Fixes for coverity
4fcbdce2a Put code in an ifdef for HAVE_TELEMEH that was dead otherwise
853ea27c7 Check that socket() doesn't return -1 in debugserver
a0eb65bf8 Fix unportable sizeof in roots.c
212e4175f Annotate the switch in generate_codepoints_by_name
1b83cc54b Guard against null pointer dereference in decodestream_discard
4470c96cc Fix the shiftjis decode bug in decode as well as decodestream
b836b0dfd Initialize pointers in MVMMultiCache.c to NULL
586950bf0 Fix the number of items in the collation union
470801808 Fix potential issue in shiftjis decoder if replacement had synthetic -1
26ab28961 Fix bounds issue in unicode collation (though not possible to trigger)
e2afa7fbc Speed up the NFA by using a cached grapheme iterator

Author: zoffixznet

tools/build/MOAR_REVISION

@@ -1 +1 @@
-2018.05-34-gdb50291
+2018.05-57-g89dee3be3