add failing tests

Author: zth

analysis/tests/src/SignatureHelp.res

@@ -53,3 +53,18 @@ let iAmSoSpecial = (iJustHaveOneArg: string) => {
 
 // let _ = "hello"->otherFunc(1
 //                             ^she
+
+let fn = (age: int, name: string, year: int) => {
+  ignore(age)
+  ignore(name)
+  ignore(year)
+}
+
+// let _ = fn(22, )
+//               ^she
+
+// let _ = fn(22, , 2023)
+//               ^she
+
+// let _ = fn(12, "hello", )
+//                        ^she

analysis/tests/src/expected/SignatureHelp.res.txt

@@ -215,3 +215,54 @@ extracted params:
   "activeParameter": 1
 }
 
+Signature help src/SignatureHelp.res 62:17
+posCursor:[62:13] posNoWhite:[62:12] Found expr:[62:11->62:19]
+Pexp_apply ...[62:11->62:13] (...[62:14->62:16])
+posCursor:[62:13] posNoWhite:[62:12] Found expr:[62:11->62:13]
+Pexp_ident fn:[62:11->62:13]
+argAtCursor: none
+extracted params: 
+[(int, string, int]
+{
+  "signatures": [{
+    "label": "let fn: (int, string, int) => unit",
+    "parameters": [{"label": [8, 12], "documentation": {"kind": "markdown", "value": "```rescript\nint\n```"}}, {"label": [14, 20], "documentation": {"kind": "markdown", "value": "```rescript\nint\n```"}}, {"label": [22, 25], "documentation": {"kind": "markdown", "value": "```rescript\nint\n```"}}]
+  }],
+  "activeSignature": 0,
+  "activeParameter": -1
+}
+
+Signature help src/SignatureHelp.res 65:17
+posCursor:[65:13] posNoWhite:[65:12] Found expr:[65:11->65:25]
+Pexp_apply ...[65:11->65:13] (...[65:14->65:16], ...[65:20->65:24])
+posCursor:[65:13] posNoWhite:[65:12] Found expr:[65:11->65:13]
+Pexp_ident fn:[65:11->65:13]
+argAtCursor: none
+extracted params: 
+[(int, string, int]
+{
+  "signatures": [{
+    "label": "let fn: (int, string, int) => unit",
+    "parameters": [{"label": [8, 12], "documentation": {"kind": "markdown", "value": "```rescript\nint\n```"}}, {"label": [14, 20], "documentation": {"kind": "markdown", "value": "```rescript\nint\n```"}}, {"label": [22, 25], "documentation": {"kind": "markdown", "value": "```rescript\nint\n```"}}]
+  }],
+  "activeSignature": 0,
+  "activeParameter": -1
+}
+
+Signature help src/SignatureHelp.res 68:26
+posCursor:[68:13] posNoWhite:[68:12] Found expr:[68:11->68:28]
+Pexp_apply ...[68:11->68:13] (...[68:14->68:16], ...[68:18->68:25])
+posCursor:[68:13] posNoWhite:[68:12] Found expr:[68:11->68:13]
+Pexp_ident fn:[68:11->68:13]
+argAtCursor: none
+extracted params: 
+[(int, string, int]
+{
+  "signatures": [{
+    "label": "let fn: (int, string, int) => unit",
+    "parameters": [{"label": [8, 12], "documentation": {"kind": "markdown", "value": "```rescript\nint\n```"}}, {"label": [14, 20], "documentation": {"kind": "markdown", "value": "```rescript\nint\n```"}}, {"label": [22, 25], "documentation": {"kind": "markdown", "value": "```rescript\nint\n```"}}]
+  }],
+  "activeSignature": 0,
+  "activeParameter": -1
+}
+