chore(compat-eslint): track vendored code-path-analyzer.d.ts

The global `*.d.ts` ignore was hiding the hand-written declaration
for the vendored CPA module — sibling `.js` files already had a
negation rule, the `.d.ts` was missed.

Author: johnsoncodehk

.gitignore

@@ -6,6 +6,7 @@ node_modules
 packages/*/index.js
 packages/*/lib/**/*.js
 !packages/compat-eslint/lib/code-path-analysis/*.js
+!packages/compat-eslint/lib/code-path-analysis/*.d.ts
 packages/*/test/**/*.js
 .tsslint/
 packages/compat-eslint/test/upstream-shim.js

packages/compat-eslint/lib/code-path-analysis/code-path-analyzer.d.ts

@@ -0,0 +1,12 @@
+declare class CodePathAnalyzer {
+	constructor(eventGenerator: {
+		emit?: (name: string, args: unknown[]) => void;
+		emitter?: { emit(name: string, ...args: unknown[]): void };
+		enterNode(node: unknown): void;
+		leaveNode(node: unknown): void;
+	});
+	enterNode(node: unknown): void;
+	leaveNode(node: unknown): void;
+}
+
+export = CodePathAnalyzer;