This reverts commit 9d9109aa.

edcca8118 Roll Dart SDK from 75251de89baf to 102cf619465d (1 revision) (flutter/engine#24172) (#75353)

* Alert dialog dartpad demo

* Updated description

This is to avoid Windows Command Prompt window from changing the fonts and colors as it transitions into Powershell with its drawing progress bar.
Instead simple console text will be printed:
```
C:\src\f\flutter>bin\flutter doctor
Checking Dart SDK version...
Downloading Dart SDK from Flutter engine 2c144c3eeb4b25fd78b90dd3e2a24c36f4201021...
Expanding downloaded archive...
Building flutter tool...
...
```

Fixes https://github.com/flutter/flutter/issues/74864

Relands "[gen-l10n] Fixes named and positional parameter issue with NumberFormat when type is specified" (#75346)

* ➕ Added a new template for [NumberFo
rmat] with positional parameter(s)

* 🔨 Renamed [numberFormatTemplate] to [numberFormatNamedTemplate]

* [gen-l10n] Fixed generation error for namedParameters and optionalParameters

* [gen-l10n] Fixed string value generation for optional parameter

* [gen-l10n-test] Added new tests for `decimalPattern`, `percentPattern`, `scientificPattern` and formats with optional parameters.

* 🔨 Removed trailing whitespaces

* 🔨 replaced [_generateStringParameterValue] with [generateString]

* 🔨 Specified variable types in NumberFormat templates.

* ➕ Added a new template for [NumberFo
rmat] with positional parameter(s)

* 🔨 Renamed [numberFormatTemplate] to [numberFormatNamedTemplate]

* [gen-l10n] Fixed generation error for namedParameters and optionalParameters

* [gen-l10n] Fixed string value generation for optional parameter

* [gen-l10n-test] Added new tests for `decimalPattern`, `percentPattern`, `scientificPattern` and formats with optional parameters.

* 🔨 Removed trailing whitespaces

* 🔨 replaced [_generateStringParameterValue] with [generateString]

* 🔨 Specified variable types in NumberFormat templates.

* [gen-l10n] ✅ added test for parameter having special characters in string value.

* Accidental tab added to integration test
Co-authored-by: arish <arishsultan104@gmail.com>

This reverts commit 1e8e4147.