fixed argument error of MIR_new_expr_data
## MIR module
* Module is a high level entity of MIR program
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* Module is created through API function `MIR_module_t MIR_new_module (const char *name)`
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* Module creation is finished by calling API function `MIR_finish_module`
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* You can create only one module at any given time
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* List of all created modules can be gotten by function `DLIST (MIR_module_t) *MIR_get_module_list (MIR_context_t ctx)`
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* MIR module consists of **items**. There are following **item types** (and function for their creation):
* **Function**: `MIR_func_item`
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* **Import**: `MIR_import_item` (`MIR_item_t MIR_new_import (MIR_context_t ctx, const char *name)`)
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* **Export**: `MIR_export_item` (`MIR_item_t MIR_new_export (MIR_context_t ctx, const char *name)`)
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* **Forward declaration**: `MIR_forward_item` (`MIR_item_t MIR_new_forward (MIR_context_t ctx, const char *name)`)
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* **Prototype**: `MIR_proto_item` (`MIR_new_proto_arr`, `MIR_new_proto`, `MIR_new_vararg_proto_arr`,
`MIR_new_vararg_proto` analogous to `MIR_new_func_arr`, `MIR_new_func`, `MIR_new_vararg_func_arr` and
`MIR_new_vararg_func` -- see below). The only difference is that
two or more prototype argument names can be the same
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* **Data**: `MIR_data_item` with optional name
(`MIR_item_t MIR_new_data (MIR_context_t ctx, const char *name, MIR_type_t el_type, size_t nel, const void *els)`
or `MIR_item_t MIR_new_string_data (MIR_context_t ctx, const char *name, MIR_str_t str)`)
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* **Reference data**: `MIR_ref_data_item` with optional name
(`MIR_item_t MIR_new_ref_data (MIR_context_t ctx, const char *name, MIR_item_t item, int64_t disp)`
* The address of the item after linking plus `disp` is used to initialize the data
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* **Expression Data**: `MIR_expr_data_item` with optional name
- (`MIR_item_t MIR_new_expr_data (MIR_context_t ctx, const char *name, MIR_item_func_item)`)
+ (`MIR_item_t MIR_new_expr_data (MIR_context_t ctx, **const** **char** *****name,
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+ MIR_item_t expr_item))
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* Not all MIR functions can be used for expression data. The expression function should have
only one result, have no arguments, not use any call or any instruction with memory
* The expression function is called during linking and its result is used to initialize the data
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* **Memory segment**: `MIR_bss_item` with optional name (`MIR_item_t MIR_new_bss (MIR_context_t ctx, const char *name, size_t len)`)
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* Long double data item is changed to double one, if long double coincides with double for given target or ABI
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* Names of MIR functions, imports, and prototypes should be unique in a module
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* API functions `MIR_output_item (MIR_context_t ctx, FILE *f, MIR_item_t item)`
and `MIR_output_module (MIR_context_t ctx, FILE *f, MIR_module_t module)` output item or module
textual representation into given file
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* MIR text module syntax looks the following:
```
<module name>: module
