Fix and test case for Mantis bug 1979

inform7/Tests/Test Problems/PM_NoSuchVerbNumberedColon.txt

@@ -0,0 +1,5 @@
+Lab is a room.
+
+To (X - a number) be praised!: say X.
+
+To recite a hymn to 3: 3 be praised!.

inform7/Tests/Test Problems/_Results_Ideal/PM_NoSuchVerbNumberedColon.txt

@@ -0,0 +1,15 @@
+Inform 7 v10.1.0 has started.
+I've now read your source text, which is 22 words long.
+I've also read Basic Inform by Graham Nelson, which is 7691 words long.
+I've also read English Language by Graham Nelson, which is 2328 words long.
+I've also read Standard Rules by Graham Nelson, which is 32092 words long.
+Problem__ PM_NoSuchVerbNumberedColon
+  >--> In the sentence 'To recite a hymn to 3: 3 be praised !' (source text, line 5),
+    I can't find a verb that I know how to deal with. I notice there's a colon
+    ':' with a number either side of it - this might have led to confusion
+    because the usual convention that ':' divides a rule or phrase from its
+    definition does not apply in this case, to avoid potential confusion with
+    times of day like '2:15 PM'. If you put a line break after the ':' and
+    before the second number, though, you can make sure I'm definitely reading
+    it as punctuation.
+Inform 7 has finished.

inform7/assertions-module/Chapter 2/Classifying Sentences.w

@@ -209,6 +209,7 @@ this, a problem message of some kind will certainly result.
 	before/every/after/when/instead/check/carry/report ... | ==> @<Issue PM_RuleWithoutColon problem@>
 	if ... |												 ==> @<Issue PM_IfOutsidePhrase problem@>
 	... , ... |												 ==> @<Issue PM_NoSuchVerbComma problem@>
+	... <cardinal-number> : <cardinal-number> ... |          ==> @<Issue PM_NoSuchVerbNumberedColon problem@>
 	...														 ==> @<Issue PM_NoSuchVerb problem@>
 
 <no-primary-verb-diagnosis-tail> ::=
@@ -250,6 +251,19 @@ this, a problem message of some kind will certainly result.
 		"have been a colon ':'?)");
 	Problems::issue_problem_end();
 
+@<Issue PM_NoSuchVerbNumberedColon problem@> =
+	Problems::quote_source(1, current_sentence);
+	StandardProblems::handmade_problem(Task::syntax_tree(), _p_(PM_NoSuchVerbNumberedColon));
+	Problems::issue_problem_segment(
+		"In the sentence %1, I can't find a verb that I know how to deal with. "
+		"I notice there's a colon ':' with a number either side of it - this might "
+		"have led to confusion because the usual convention that ':' divides a "
+		"rule or phrase from its definition does not apply in this case, to avoid "
+		"potential confusion with times of day like '2:15 PM'. If you put a line "
+		"break after the ':' and before the second number, though, you can make "
+		"sure I'm definitely reading it as punctuation.");
+	Problems::issue_problem_end();
+
 @<Issue PM_NoSuchVerb problem@> =
 	Problems::quote_source(1, current_sentence);
 	StandardProblems::handmade_problem(Task::syntax_tree(), _p_(PM_NoSuchVerb));