add missing imports for "old" std.regex unittests

MartinNowak · MartinNowak · commit 48a17920952d · 2017-02-16T17:44:10.000+01:00
- old tests after reverting BitNFA didn't have isolated runnable unittests
diff --git a/std/regex/package.d b/std/regex/package.d
@@ -625,6 +625,8 @@ public:
 ///
 unittest
 {
+    import std.range.primitives : popFrontN;
+
     auto c = matchFirst("@abc#", regex(`(\w)(\w)(\w)`));
     assert(c.pre == "@"); // Part of input preceding match
     assert(c.post == "#"); // Immediately after match
@@ -1598,6 +1600,7 @@ unittest
 unittest
 {
     import std.algorithm.comparison : equal;
+    import std.typecons;
 
     auto pattern = regex(`([\.,])`);
 

Original file line number	Diff line number	Diff line change
`@@ -625,6 +625,8 @@ public:`
`625`	`625`	`///`
`626`	`626`	`unittest`
`627`	`627`	`{`
	`628`	`+ import std.range.primitives : popFrontN;`
	`629`	`+`
`628`	`630`	auto c = matchFirst("@abc#", regex(`(\w)(\w)(\w)`));
`629`	`631`	`assert(c.pre == "@"); // Part of input preceding match`
`630`	`632`	`assert(c.post == "#"); // Immediately after match`
`@@ -1598,6 +1600,7 @@ unittest`
`1598`	`1600`	`unittest`
`1599`	`1601`	`{`
`1600`	`1602`	`import std.algorithm.comparison : equal;`
	`1603`	`+ import std.typecons;`
`1601`	`1604`
`1602`	`1605`	auto pattern = regex(`([\.,])`);
`1603`	`1606`