[chore] Small nits in component.ID, add extra details in comments

Signed-off-by: Bogdan Drutu <[email protected]>

component/identifiable.go

@@ -84,9 +84,10 @@ func NewID(typeVal Type) ID {
 }
 
 // MustNewID builds a Type and returns a new ID with the given Type and empty name.
+// This is equivalent to NewID(MustNewType(typeVal)).
 // See MustNewType to check the valid values of typeVal.
 func MustNewID(typeVal string) ID {
-	return ID{typeVal: MustNewType(typeVal)}
+	return NewID(MustNewType(typeVal))
 }
 
 // NewIDWithName returns a new ID with the given Type and name.
@@ -95,9 +96,10 @@ func NewIDWithName(typeVal Type, nameVal string) ID {
 }
 
 // MustNewIDWithName builds a Type and returns a new ID with the given Type and name.
+// This is equivalent to NewIDWithName(MustNewType(typeVal), nameVal).
 // See MustNewType to check the valid values of typeVal.
 func MustNewIDWithName(typeVal string, nameVal string) ID {
-	return ID{typeVal: MustNewType(typeVal), nameVal: nameVal}
+	return NewIDWithName(MustNewType(typeVal), nameVal)
 }
 
 // Type returns the type of the component.