feat(documentation): better highlighting for TL-B types

Towards #7

Author: i582

src/main/kotlin/org/tonstudio/tact/ide/documentation/documentation.kt

@@ -567,7 +567,16 @@ fun TactTupleTypeEx.generateDoc(anchor: PsiElement): String {
 }
 
 fun TactPrimitiveTypeEx.generateDoc(anchor: PsiElement): String {
-    return colorize(readableName(anchor), asBuiltin)
+    val name = readableName(anchor)
+    val tlb = tlbType
+    if (tlb != null) {
+        return buildString {
+            colorize(name, asPrimitive)
+            colorize(" as ", asKeyword)
+            colorize(tlb, asPrimitive)
+        }
+    }
+    return colorize(name, asPrimitive)
 }
 
 private fun generateFqnTypeDoc(fqn: String, color: TextAttributes): String {

src/main/kotlin/org/tonstudio/tact/lang/psi/types/TactPrimitiveTypeEx.kt

@@ -11,13 +11,11 @@ class TactPrimitiveTypeEx(val name: TactPrimitiveTypes, anchor: PsiElement? = nu
 
     override fun module(): String = "builtin"
 
-    override fun toString(): String = name.value + tlbPresentation()
+    override fun toString(): String = name.value
 
-    override fun qualifiedName(): String = name.value + tlbPresentation()
+    override fun qualifiedName(): String = name.value
 
-    override fun readableName(context: PsiElement, detailed: Boolean): String = name.value + tlbPresentation()
-
-    private fun tlbPresentation() = if (tlbType == null) "" else " as $tlbType"
+    override fun readableName(context: PsiElement, detailed: Boolean): String = name.value
 
     override fun isAssignableFrom(project: Project, rhs: TactTypeEx, kind: AssignableKind): Boolean {
         return when (rhs) {