ash: add tests adapted from hush glob tests. glob2.tests currently fails

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

shell/ash_test/ash-glob/glob1.right

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+glob1.tests
+glob1.tests

shell/ash_test/ash-glob/glob1.tests

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+echo *glob1?t[e]sts*
+echo "glob1"?'t'[e]s*

shell/ash_test/ash-glob/glob2.right

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+Expected Actual
+Z\*    : Z\*
+Z*     : Z*
+Z\f    : Z\f
+Z\*    : Z\*
+
+Z\z    : Z\z
+Zz     : Zz
+Z\z    : Z\z
+Z\z    : Z\z
+
+Z\     : Z\
+Z\     : Z\
+
+Z\f Zf : Z\f Zf
+Z\f Zf : Z\f Zf
+
+Done: 0

shell/ash_test/ash-glob/glob2.tests

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+# This test demonstrates that in unquoted $v, backslashes expand by this rule:
+# \z -> \\\z; \<eol> -> \\<eol> (for any z, special or not),
+# and subsequently globbing converts \\ to \ and treats \z as literal z
+# even if it is a special char.
+
+>'Zf'
+>'Z\f'
+	echo 'Expected' 'Actual'
+v='\*'; echo 'Z\*    :' Z$v    # ash is buggy here: prints 'Z\f'
+        echo 'Z*     :' Z\*
+        echo 'Z\f    :' Z\\*
+        echo 'Z\*    :' Z\\\*  # NB! only this matches Z$v output
+echo
+v='\z'; echo 'Z\z    :' Z$v
+        echo 'Zz     :' Z\z
+        echo 'Z\z    :' Z\\z
+        echo 'Z\z    :' Z\\\z
+echo
+v='\';  echo 'Z\     :' Z$v
+        echo 'Z\     :' Z\\
+echo
+v='*';  echo 'Z\f Zf :' Z$v
+        echo 'Z\f Zf :' Z*
+echo
+
+rm 'Z\f' 'Zf'
+echo Done: $?

shell/ash_test/ash-glob/glob_and_assign.right

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+ZVAR=z.tmp ZVAR=*.tmp ZVAR=[z].tmp
+ZVAR=z.tmp ZVAR=*.tmp ZVAR=[z].tmp
+*.tmp
+ZVAR=z.tmp z.tmp
+ZVAR=z.tmp ZVAR=*.tmp ZVAR=[z].tmp
+ZVAR=z.tmp ZVAR=*.tmp ZVAR=[z].tmp

shell/ash_test/ash-glob/glob_and_assign.tests

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+>ZVAR=z.tmp
+>z.tmp
+ZVAR=*.tmp echo ZVAR=*.tmp "ZVAR=*.tmp" "ZVAR=[z].tmp"
+ZVAR=*.tmp /bin/echo ZVAR=*.tmp "ZVAR=*.tmp" "ZVAR=[z].tmp"
+ZVAR=*.tmp
+echo "$ZVAR"
+echo $ZVAR
+echo ZVAR=*.tmp "ZVAR=*.tmp" "ZVAR=[z].tmp"
+/bin/echo ZVAR=*.tmp "ZVAR=*.tmp" "ZVAR=[z].tmp"
+rm ZVAR=z.tmp z.tmp

shell/ash_test/ash-glob/glob_redir.right

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+z.tmp:
+?.tmp: TEST

shell/ash_test/ash-glob/glob_redir.tests

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+# Redirections are not globbed.
+# bash:
+# if run as "sh", they are not globbed, but
+# if run as "bash", they are!
+>z.tmp
+echo TEST >?.tmp
+echo 'z.tmp:' `cat 'z.tmp'`
+echo '?.tmp:' `cat '?.tmp'`
+rm 'z.tmp' '?.tmp'