[pull] master from ruby:master #108
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Old versions of BUndler need a workaround to support nested `bundle exec` invocations by overriding `Gem.activate_bin_path`. However, RubyGems now uses this new `Gem.activate_and_load_bin_path` helper in binstubs, which is of course not overridden in those Bundler versions since it didn't exist at the time. So, include the override here to workaround that. ruby/rubygems@e5ed95e242
Or else the following returns garbage since it loads after
moving SP. Prior bad disassembly:
def a(n1,n2,n3,n4,n5,n6,n7,n8) = n8
a(1,1,1,1,1,1,1,0)
# Block: bb0(v0, v1, v2, v3, v4, v5, v6, v7, v8)
stp x29, x30, [sp, #-0x10]!
mov x29, sp
# bump C stack pointer
sub sp, sp, #0x10
# Insn: v10 Return v8
# pop stack frame
adds x19, x19, #0x38
stur x19, [x20, #0x10]
# restore C stack pointer
add sp, sp, #0x10
mov sp, x29
ldp x29, x30, [sp], #0x10
ldur x0, [sp]
ret
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