Fix importsym with Unix-style newlines

Author: Prof9

Commands/CDirectiveFile.cpp

@@ -591,12 +591,11 @@ CDirectiveSymImport::CDirectiveSymImport(const fs::path& fileName)
 	{
 		// End line at comment (starting with ;)
 		// \x1A included here as well since No$gba .sym file ends with it
-		size_t lineEnd = line.find_first_of(";\r\x1A");
+		size_t lineEnd = line.length();
+		lineEnd = std::min(line.find_first_of(";\r\x1A"),lineEnd);
 		if (lineEnd != std::string::npos && lineEnd > 0)
 		{
-			lineEnd = line.find_last_not_of(" \t",lineEnd-1);
-			if (lineEnd != std::string::npos)
-				lineEnd += 1;
+			lineEnd = std::max(line.find_last_not_of(" \t",lineEnd-1)+1,(size_t)0);
 		}
 
 		// Skip empty line

Tests/Core/SymFileImport/input.sym

@@ -5,7 +5,7 @@
 45544554		ValidLabelWithTabs
 67766776  	  	ValidLabelWithSpacesAndTabs
 89988998 ValidLabelWithComment ; No$gba does allow this, if there is whitespace before the ;
-
+    
 11223344 @StaticLabel
 55667788 @StaticLabel
 99AABBCC @@LocalLabel