fix: anonymous 5647 and 5647$ matching bug

Author: jedwards1211

src/compileMatcher/index.ts

@@ -72,6 +72,7 @@ export function mergeCaptures(...results: MatchResult[]): MatchResult {
   let current: MatchResult = null
   for (const result of results) {
     if (!result) continue
+    if (!current) current = {}
     if (result.captures && hasCapturePlaceholder(result.captures)) {
       if (!current) current = {}
       if (!current.captures) current.captures = {}

test/findReplace/anonOrderedMatch.ts

@@ -0,0 +1,25 @@
+import { findReplaceTestcase } from '../findReplaceTestcase'
+import dedent from 'dedent-js'
+
+findReplaceTestcase({
+  file: __filename,
+  input: dedent`
+    MetadataItem.create({
+      tag: 'foo',
+      name: 'test',
+    })
+  `,
+  find: dedent`
+    MetadataItem.create({$$, name: $, $$}) 
+  `,
+  expectedFind: [
+    {
+      node: dedent`
+        MetadataItem.create({
+          tag: 'foo',
+          name: 'test',
+        })
+      `,
+    },
+  ],
+})

test/findReplace/anonRestMatch.ts

@@ -0,0 +1,25 @@
+import { findReplaceTestcase } from '../findReplaceTestcase'
+import dedent from 'dedent-js'
+
+findReplaceTestcase({
+  file: __filename,
+  input: dedent`
+    MetadataItem.create({
+      tag: 'foo',
+      name: 'test',
+    })
+  `,
+  find: dedent`
+    MetadataItem.create({name: $, $$$}) 
+  `,
+  expectedFind: [
+    {
+      node: dedent`
+        MetadataItem.create({
+          tag: 'foo',
+          name: 'test',
+        })
+      `,
+    },
+  ],
+})