Tests: Added strict checks for Prism.languages.extend (#2572)

components/prism-birb.js

@@ -1,23 +1,23 @@
 Prism.languages.birb = Prism.languages.extend('clike', {
+	'string': {
+		pattern: /r?("|')(?:\\.|(?!\1)[^\\])*\1/,
+		greedy: true
+	},
 	'class-name': [
 		/\b[A-Z](?:[\d_]*[a-zA-Z]\w*)?\b/,
 
 		// matches variable and function return types (parameters as well).
 		/\b[A-Z]\w*(?=\s+\w+\s*[;,=()])/
 	],
-	'string': {
-		pattern: /r?("|')(?:\\.|(?!\1)[^\\])*\1/,
-		greedy: true
-	},
 	'keyword': /\b(?:assert|break|case|class|const|default|else|enum|final|follows|for|grab|if|nest|next|new|noSeeb|return|static|switch|throw|var|void|while)\b/,
-	'variable': /\b[a-z_]\w*\b/,
 	'operator': /\+\+|--|&&|\|\||<<=?|>>=?|~(?:\/=?)?|[+\-*\/%&^|=!<>]=?|\?|:/,
+	'variable': /\b[a-z_]\w*\b/,
 });
 
-Prism.languages.insertBefore('birb','function',{
+Prism.languages.insertBefore('birb', 'function', {
 	'metadata': {
 		pattern: /<\w+>/,
 		greedy: true,
 		alias: 'symbol'
 	}
-});
+});

components/prism-c.js

@@ -9,8 +9,8 @@ Prism.languages.c = Prism.languages.extend('clike', {
 	},
 	'keyword': /\b(?:__attribute__|_Alignas|_Alignof|_Atomic|_Bool|_Complex|_Generic|_Imaginary|_Noreturn|_Static_assert|_Thread_local|asm|typeof|inline|auto|break|case|char|const|continue|default|do|double|else|enum|extern|float|for|goto|if|int|long|register|return|short|signed|sizeof|static|struct|switch|typedef|union|unsigned|void|volatile|while)\b/,
 	'function': /[a-z_]\w*(?=\s*\()/i,
-	'operator': />>=?|<<=?|->|([-+&|:])\1|[?:~]|[-+*/%&|^!=<>]=?/,
-	'number': /(?:\b0x(?:[\da-f]+\.?[\da-f]*|\.[\da-f]+)(?:p[+-]?\d+)?|(?:\b\d+\.?\d*|\B\.\d+)(?:e[+-]?\d+)?)[ful]*/i
+	'number': /(?:\b0x(?:[\da-f]+\.?[\da-f]*|\.[\da-f]+)(?:p[+-]?\d+)?|(?:\b\d+\.?\d*|\B\.\d+)(?:e[+-]?\d+)?)[ful]*/i,
+	'operator': />>=?|<<=?|->|([-+&|:])\1|[?:~]|[-+*/%&|^!=<>]=?/
 });
 
 Prism.languages.insertBefore('c', 'string', {