No `else` autocompletion in expression

[matklad]

cc @Veykril

[Veykril]

Looks like recovery is recovering a bit aggressively here, for func(if true {} el) we get

STMT_LIST@7938..7965
  L_CURLY@7938..7939 "{"
  WHITESPACE@7939..7944 "\n    "
  EXPR_STMT@7944..7959
    CALL_EXPR@7944..7959
      PATH_EXPR@7944..7948
        PATH@7944..7948
          PATH_SEGMENT@7944..7948
            NAME_REF@7944..7948
              IDENT@7944..7948 "func"
      ARG_LIST@7948..7959
        L_PAREN@7948..7949 "("
        IF_EXPR@7949..7959
          IF_KW@7949..7951 "if"
          WHITESPACE@7951..7952 " "
          CONDITION@7952..7956
            LITERAL@7952..7956
              TRUE_KW@7952..7956 "true"
          WHITESPACE@7956..7957 " "
          BLOCK_EXPR@7957..7959
            STMT_LIST@7957..7959
              L_CURLY@7957..7958 "{"
              R_CURLY@7958..7959 "}"
  WHITESPACE@7959..7960 " "
  EXPR_STMT@7960..7962
    PATH_EXPR@7960..7962
      PATH@7960..7962
        PATH_SEGMENT@7960..7962
          NAME_REF@7960..7962
            IDENT@7960..7962 "el"
  ERROR@7962..7963
    R_PAREN@7962..7963 ")"
  WHITESPACE@7963..7964 "\n"
  R_CURLY@7964..7965 "}"

which screws over the sibling search

[Veykril]

I guess this is part of #10195

[Veykril]

Closed by #14128