#-----| [CopyAssignmentOperator] __va_list_tag& __va_list_tag::operator=(__va_list_tag const&)
#-----|   <params>: 
#-----|     getParameter(0): [Parameter] (unnamed parameter 0)
#-----|         Type = [LValueReferenceType] const __va_list_tag &
#-----| [MoveAssignmentOperator] __va_list_tag& __va_list_tag::operator=(__va_list_tag&&)
#-----|   <params>: 
#-----|     getParameter(0): [Parameter] (unnamed parameter 0)
#-----|         Type = [RValueReferenceType] __va_list_tag &&
test.cpp:
#    3| [CopyAssignmentOperator] S& S::operator=(S const&)
#    3|   <params>: 
#-----|     getParameter(0): [Parameter] (unnamed parameter 0)
#-----|         Type = [LValueReferenceType] const S &
#    3| [MoveAssignmentOperator] S& S::operator=(S&&)
#    3|   <params>: 
#-----|     getParameter(0): [Parameter] (unnamed parameter 0)
#-----|         Type = [RValueReferenceType] S &&
#    5| [MemberFunction] int S::operator[](int, int)
#    5|   <params>: 
#    5|     getParameter(0): [Parameter] i
#    5|         Type = [IntType] int
#    5|     getParameter(1): [Parameter] j
#    5|         Type = [IntType] int
#    5|   getEntryPoint(): [BlockStmt] { ... }
#    6|     getStmt(0): [ReturnStmt] return ...
#    6|       getExpr(): [ArrayExpr] access to array
#    6|           Type = [IntType] int
#    6|           ValueCategory = prvalue(load)
#    6|         getArrayBase(): [ArrayExpr] access to array
#    6|             Type = [ArrayType] int[2]
#    6|             ValueCategory = lvalue
#    6|           getArrayBase(): [ImplicitThisFieldAccess,PointerFieldAccess] xs
#    6|               Type = [ArrayType] int[2][2]
#    6|               ValueCategory = lvalue
#    6|             getQualifier(): [ThisExpr] this
#    6|                 Type = [PointerType] S *
#    6|                 ValueCategory = prvalue(load)
#    6|           getArrayOffset(): [VariableAccess] i
#    6|               Type = [IntType] int
#    6|               ValueCategory = prvalue(load)
#-----|           getArrayBase().getFullyConverted(): [ArrayToPointerConversion] array to pointer conversion
#-----|               Type = [PointerType] int(*)[2]
#-----|               ValueCategory = prvalue
#    6|         getArrayOffset(): [VariableAccess] j
#    6|             Type = [IntType] int
#    6|             ValueCategory = prvalue(load)
#    6|         getArrayBase().getFullyConverted(): [ArrayToPointerConversion] array to pointer conversion
#    6|             Type = [IntPointerType] int *
#    6|             ValueCategory = prvalue
#   10| [TopLevelFunction] int foo(S)
#   10|   <params>: 
#   10|     getParameter(0): [Parameter] s
#   10|         Type = [Struct] S
#   10|   getEntryPoint(): [BlockStmt] { ... }
#   11|     getStmt(0): [ReturnStmt] return ...
#   11|       getExpr(): [OverloadedArrayExpr] call to operator[]
#   11|           Type = [IntType] int
#   11|           ValueCategory = prvalue
#   11|         getArrayBase(): [VariableAccess] s
#   11|             Type = [Struct] S
#   11|             ValueCategory = lvalue
#   11|         getArrayOffset(0): [Literal] 1
#   11|             Type = [IntType] int
#   11|             Value = [Literal] 1
#   11|             ValueCategory = prvalue
#   11|         getArrayOffset(1): [Literal] 2
#   11|             Type = [IntType] int
#   11|             Value = [Literal] 2
#   11|             ValueCategory = prvalue