Skip PCRE tests on Windows

These constantly fail for silly reasons like line endings or
not having the French locale installed.

May as well just save a manual step and needing to refer people
to an easily-missed item in README.windows.md.
Backtraces: mark lineinfo with information about whether it was C code
fix #6645, 8-byte alignment of Float64 on 32-bit
Make pasting into the REPL much simpler

Previously, the REPL would try to determine if you had pasted a complete expression, and, if that expression was followed by a newline, it would evaluate it.  If there were multiple expressions, it would evaluate each one by one. However, this often fails for me when pasting incomplete snippets that I intend to edit in the command line, and since we have such good multi-line editing support I don't even think it's necessary.

This patch simply removes those smarts.  All pasted text is entered into the buffer verbatim (except for an unindentation pass if the cursor is at the beginning of the buffer). The pasted text is not sent for evaluation, even if followed by trailing newlines.  Additionally, this fixes #6664 as the cursor ends up at the end of the pasted snippet.
For @simd, clarify what user is asserting versus what is nessary.
Merge pull request #6683 from mbauman/dumb-paste

RFC: Make pasting into the REPL much simpler
Revert "Make pasting into the REPL much simpler"

This reverts commit 550be1d42d53d9a754c9096aab4f947363ae7909.
Fix #6664 properly
fix tuples represented as vectors in emit_f_is
Merge branch 'master' of github.com:JuliaLang/julia
Merge pull request #6684 from ArchRobison/adr/simddoc

For @simd, clarify what user is asserting versus what is necessary to do any good.
bitarray: some tiny optimizations

and lots of cosmetics
Add and export SharedVector/Matrix
Add fill!, rand! and randn! for SharedArrays
Make pasting to the REPL more robust to syntax errors

All text including and following a syntax error is output together on one line.
Merge pull request #6689 from mbauman/smarter-paste

Make pasting to the REPL more robust to syntax errors
a couple formatting and cleanup issues
Merge branch 'master' of github.com:JuliaLang/julia
Merge pull request #6633 from JuliaLang/teh/backtrace

Backtraces: mark lineinfo with information about whether it was C code
use new Base's version of typeinf during bootstrap to cache more code