[FIR] Render list of symbols with linebreaks as separators

#KT-61823 Fixed

analysis/analysis-api/testData/components/callResolver/resolveCall/ambiguous.txt

@@ -82,4 +82,7 @@ KtErrorCallInfo:
           callableIdIfNonLocal = null)
       }
   ]
-  diagnostic = ERROR<NONE_APPLICABLE: None of the following functions is applicable: [fun function(a: Char): Unit, fun function(b: Boolean): Unit, fun function(c: String): Unit]>
+  diagnostic = ERROR<NONE_APPLICABLE: None of the following candidates is applicable:
+  fun function(a: Char): Unit
+  fun function(b: Boolean): Unit
+  fun function(c: String): Unit>

analysis/analysis-api/testData/components/callResolver/resolveCall/ambiguousImplicitInvoke.txt

@@ -47,4 +47,6 @@ KtErrorCallInfo:
       typeArgumentsMapping = {}
       argumentMapping = {}
   ]
-  diagnostic = ERROR<NONE_APPLICABLE: None of the following functions is applicable: [fun Int.invoke(a: String): Unit, fun Int.invoke(b: Boolean): Unit]>
+  diagnostic = ERROR<NONE_APPLICABLE: None of the following candidates is applicable:
+  fun Int.invoke(a: String): Unit
+  fun Int.invoke(b: Boolean): Unit>

analysis/analysis-api/testData/components/callResolver/resolveCall/ambiguousWithExplicitTypeParameters.txt

@@ -106,4 +106,7 @@ KtErrorCallInfo:
           callableIdIfNonLocal = null)
       }
   ]
-  diagnostic = ERROR<NONE_APPLICABLE: None of the following functions is applicable: [fun <T> function(t: T, a: Char): Unit, fun <U> function(u: U, b: Boolean): Unit, fun <V> function(v: V, c: String): Unit]>
+  diagnostic = ERROR<NONE_APPLICABLE: None of the following candidates is applicable:
+  fun <T> function(t: T, a: Char): Unit
+  fun <U> function(u: U, b: Boolean): Unit
+  fun <V> function(v: V, c: String): Unit>

analysis/analysis-api/testData/components/callResolver/resolveCall/ambiguousWithInferredTypeParameters.txt

@@ -100,4 +100,7 @@ KtErrorCallInfo:
           callableIdIfNonLocal = null)
       }
   ]
-  diagnostic = ERROR<NONE_APPLICABLE: None of the following functions is applicable: [fun <T> function(t: T, a: Char): Unit, fun <U> function(u: U, b: Boolean): Unit, fun <V> function(v: V, c: String): Unit]>
+  diagnostic = ERROR<NONE_APPLICABLE: None of the following candidates is applicable:
+  fun <T> function(t: T, a: Char): Unit
+  fun <U> function(u: U, b: Boolean): Unit
+  fun <V> function(v: V, c: String): Unit>

analysis/analysis-api/testData/components/callResolver/resolveCall/delegatedConstructorCall_this_unresolved.txt

@@ -47,4 +47,6 @@ KtErrorCallInfo:
       typeArgumentsMapping = {}
       argumentMapping = {}
   ]
-  diagnostic = ERROR<NONE_APPLICABLE: None of the following functions is applicable: [constructor(p: Int): Sub, constructor(i: Int, j: Int): Sub]>
+  diagnostic = ERROR<NONE_APPLICABLE: None of the following candidates is applicable:
+  constructor(p: Int): Sub
+  constructor(i: Int, j: Int): Sub>