InlineExpectationsTest: Allow URLs as values

For example,

```py
requests.get("http://example.com") # $  clientRequestUrlPart="http://example.com"
```

would not have been allowed previously, since the `//` part of the value
for the URL would have caused the rest of the line to be treated as a
normal (non-interpreted) comment.

Requiring a space before the `//` allows this specific example, while
still support all the existing uses of `//` to break expectation tests,
which is usually to add a comment explaining why the annotation is like
it is.

Author: RasmusWL

cpp/ql/test/TestUtilities/InlineExpectationsTest.qll

@@ -173,10 +173,10 @@ abstract class InlineExpectationsTest extends string {
 /**
  * RegEx pattern to match a comment containing one or more expected results. The comment must have
  * `$` as its first non-whitespace character. Any subsequent character
- * is treated as part of the expected results, except that the comment may contain a `//` sequence
+ * is treated as part of the expected results, except that the comment may contain a ` //` sequence
  * to treat the remainder of the line as a regular (non-interpreted) comment.
  */
-private string expectationCommentPattern() { result = "\\s*\\$((?:[^/]|/[^/])*)(?://.*)?" }
+private string expectationCommentPattern() { result = "\\s*\\$((?:[^/]|[^ ]//|/[^/])*)(?: //.*)?" }
 
 /**
  * The possible columns in an expectation comment. The `TDefaultColumn` branch represents the first

csharp/ql/test/TestUtilities/InlineExpectationsTest.qll

@@ -173,10 +173,10 @@ abstract class InlineExpectationsTest extends string {
 /**
  * RegEx pattern to match a comment containing one or more expected results. The comment must have
  * `$` as its first non-whitespace character. Any subsequent character
- * is treated as part of the expected results, except that the comment may contain a `//` sequence
+ * is treated as part of the expected results, except that the comment may contain a ` //` sequence
  * to treat the remainder of the line as a regular (non-interpreted) comment.
  */
-private string expectationCommentPattern() { result = "\\s*\\$((?:[^/]|/[^/])*)(?://.*)?" }
+private string expectationCommentPattern() { result = "\\s*\\$((?:[^/]|[^ ]//|/[^/])*)(?: //.*)?" }
 
 /**
  * The possible columns in an expectation comment. The `TDefaultColumn` branch represents the first

java/ql/test/TestUtilities/InlineExpectationsTest.qll

@@ -173,10 +173,10 @@ abstract class InlineExpectationsTest extends string {
 /**
  * RegEx pattern to match a comment containing one or more expected results. The comment must have
  * `$` as its first non-whitespace character. Any subsequent character
- * is treated as part of the expected results, except that the comment may contain a `//` sequence
+ * is treated as part of the expected results, except that the comment may contain a ` //` sequence
  * to treat the remainder of the line as a regular (non-interpreted) comment.
  */
-private string expectationCommentPattern() { result = "\\s*\\$((?:[^/]|/[^/])*)(?://.*)?" }
+private string expectationCommentPattern() { result = "\\s*\\$((?:[^/]|[^ ]//|/[^/])*)(?: //.*)?" }
 
 /**
  * The possible columns in an expectation comment. The `TDefaultColumn` branch represents the first

python/ql/test/TestUtilities/InlineExpectationsTest.qll

@@ -173,10 +173,10 @@ abstract class InlineExpectationsTest extends string {
 /**
  * RegEx pattern to match a comment containing one or more expected results. The comment must have
  * `$` as its first non-whitespace character. Any subsequent character
- * is treated as part of the expected results, except that the comment may contain a `//` sequence
+ * is treated as part of the expected results, except that the comment may contain a ` //` sequence
  * to treat the remainder of the line as a regular (non-interpreted) comment.
  */
-private string expectationCommentPattern() { result = "\\s*\\$((?:[^/]|/[^/])*)(?://.*)?" }
+private string expectationCommentPattern() { result = "\\s*\\$((?:[^/]|[^ ]//|/[^/])*)(?: //.*)?" }
 
 /**
  * The possible columns in an expectation comment. The `TDefaultColumn` branch represents the first

ruby/ql/test/TestUtilities/InlineExpectationsTest.qll

@@ -173,10 +173,10 @@ abstract class InlineExpectationsTest extends string {
 /**
  * RegEx pattern to match a comment containing one or more expected results. The comment must have
  * `$` as its first non-whitespace character. Any subsequent character
- * is treated as part of the expected results, except that the comment may contain a `//` sequence
+ * is treated as part of the expected results, except that the comment may contain a ` //` sequence
  * to treat the remainder of the line as a regular (non-interpreted) comment.
  */
-private string expectationCommentPattern() { result = "\\s*\\$((?:[^/]|/[^/])*)(?://.*)?" }
+private string expectationCommentPattern() { result = "\\s*\\$((?:[^/]|[^ ]//|/[^/])*)(?: //.*)?" }
 
 /**
  * The possible columns in an expectation comment. The `TDefaultColumn` branch represents the first